2019 Year 12 IB Extended Essays

Table 9: Raw data of the height of Wheatgrass on Day 14 Chemical used Sodium Chloride Trials 0M 0.0068M 0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5

10.4

10.4 10.3

9.5 8.5 9.4 9.5 7.9

6.2 7.5 7.5 8.1 7.3

0.1

9.5

0 0 0 0

10.9 10.6 11.9

9.3

11.7 11.5

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

13.6 13.9

15.0 14.9 14.5 16.1 14.1

14.1 16.6 15.3 16.8 17.2

17.6 16.8 16.9 15.8 18.1

14.3 17.4 17.5 16.8 17.2

9.9

12.5 13.3

Table 10: Raw data of the height of Wheatgrass on Day 16 Chemical used Sodium Chloride Trials 0M 0.0068M 0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

10.8

10.5 10.5

9.9 8.8 9.5 9.8 8.2

6.5 7.7 7.9 8.6 7.8

0.1

9.9

0 0 0 0

11.4 11.1 12.4

9.6

12.3 12.7

Chemical used

Sodium Nitrate Trials 0M

0.0068M

0.0274M

0.1095M

0.4381M

Height of sprouts on Day 2 in cm ( ± 0.05cm)

13.9 14.2 10.4 13.0 13.7

16.2 15.2 15.3 17.2 14.9

14.4 17.3 16.1 17.2 17.6

18.2 17.4 17.4 16.6 18.9

15.3 18.3 17.9 17.5 19.3

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